■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 7675 — is the max pain price.
Open interest by strike · Wed, Sep 23
■ calls (up)■ puts (down)SPX open contracts per strike for Wed, Sep 23.
Open-interest change — building vs unwinding
Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.
Volume by strike · Wed, Sep 23
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).
Implied volatility by strike · Wed, Sep 23
— call IV— put IVATM ≈ 11.5% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.
Gamma exposure by strike · Wed, Sep 23
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.
Greeks by strike · Wed, Sep 23
Call Δ
Call Θ
Strike
Γ
Vega
Put Θ
Put Δ
0.65
-2.74
7600
0.0021
5.18
-2.74
-0.35
0.63
-2.76
7610
0.0022
5.27
-2.76
-0.38
0.61
-2.76
7615
0.0022
5.31
-2.76
-0.39
0.59
-2.76
7625
0.0023
5.39
-2.76
-0.41
0.58
-2.76
7630
0.0023
5.42
-2.76
-0.42
0.56
-2.74
7640
0.0024
5.47
-2.74
-0.44
0.54
-2.72
7650
0.0025
5.51
-2.72
-0.46
0.51
-2.69
7660
0.0025
5.53
-2.69
-0.49
0.49
-2.65
7670
0.0026
5.53
-2.65
-0.51
0.47
-2.62
7675
0.0026
5.52
-2.62
-0.53
0.41
-2.46
7700
0.0026
5.39
-2.46
-0.59
0.34
-2.23
7725
0.0025
5.10
-2.23
-0.66
0.33
-2.18
7730
0.0025
5.03
-2.18
-0.68
0.27
-1.95
7750
0.0024
4.67
-1.95
-0.73
0.21
-1.63
7775
0.0021
4.10
-1.63
-0.79
Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 60 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.
Stacked — layer the expirations
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.
Max pain history — nearest expiry vs price
— max pain (nearest expiry)- - delayed closeOne point per snapshot day since 2026-07-28; unobserved days are gaps, not guesses.
Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.
Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.